Syntheses, Structures, and Properties of Two-Dimensional Honeycomb Networks from the Assembly of the Tripodal Ligand 2,4,6-Tris[4-(imidazol-1-ylmethyl)phenyl]-1,3,5-triazine with Metal Salts
✍ Scribed by Shuang-Yi Wan; Yi-Zhi Li; Taka-aki Okamura; Jian Fan; Wei-Yin Sun; Norikazu Ueyama
- Publisher
- John Wiley and Sons
- Year
- 2003
- Tongue
- English
- Weight
- 218 KB
- Volume
- 2003
- Category
- Article
- ISSN
- 1434-1948
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✦ Synopsis
Abstract
Two novel coordination networks, Zn~2~(timpt)~2~(μ‐OH)~3~ (1) and [Ni~2~(timpt)~2~(H~2~O)~2~(SO~4~)~2~]·0.5H~2~O (2) were obtained by assembly of 2,4,6‐tris[4‐(imidazol‐1‐ylmethyl)phenyl]‐1,3,5‐triazine (timpt) with the corresponding metal salts. The X‐ray single‐crystal diffraction analysis reveals that complex 1 possesses μ‐OH‐bridged dinuclear zinc(II) subunits (Zn~2~OH) and each timpt ligand connects three metal atoms to form a two‐dimensional (2D) honeycomb network structure, in which each independent sheet contains two sublayers. While in the case of complex 2, the nickel(II) atom is coordinated by N atoms of timpt, O atoms of sulfate anions and water molecules to give a 2D honeycomb network. The luminescence properties of timpt, 1 and 2 in the solid state were investigated at room temperature. The maximum emission wavelength of 1 is red‐shifted by 17 nm compared with that of timpt. While complex 2 showed an emission with remarkably reduced intensity under the same conditions. The results imply that the metal ions have great influence on the structure and properties of the complexes. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2003)